:root {
  --bg: #f7f4ef;
  --bg-soft: #fffaf3;
  --text: #111827;
  --muted: #5b6574;
  --line: rgba(17, 24, 39, 0.12);
  --navy: #0f172a;
  --navy-2: #172554;
  --gold: #b88935;
  --gold-soft: #e6c98f;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(15, 23, 42, 0.14);
  --radius: 28px;
  --container: 1180px;
  --header-height: 78px;
  --header-height-mobile: 68px;
  --scroll-progress: 0%;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

:where(a, button, summary, input, select, textarea, [tabindex]):focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
  border-radius: 8px;
}

body {
  margin: 0;
  font-family: Manrope, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top left, rgba(184,137,53,0.18), transparent 32rem), var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 30;
  background: rgba(15, 23, 42, 0.06);
}

.scroll-progress-bar {
  display: block;
  width: var(--scroll-progress);
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--navy));
  transition: width 0.15s linear;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--gold); }

.container { width: min(100% - 40px, var(--container)); margin: 0 auto; }
.section { padding: 96px 0; }
.section-sm { padding: 56px 0; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 16px;
  background: var(--navy);
  color: var(--white);
  padding: 12px 16px;
  border-radius: 999px;
  z-index: 100;
}
.skip-link:focus { left: 16px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247, 244, 239, 0.82);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}
.nav { display: flex; align-items: center; justify-content: space-between; min-height: 78px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: -0.04em; }
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  color: var(--white);
  background: linear-gradient(135deg, var(--navy), var(--gold));
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.22);
}
.brand-text { font-size: 1.32rem; }
.brand-text span { color: var(--gold); }
.nav-disclosure {
  display: none;
}
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 0.95rem; font-weight: 600; }
.nav-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.nav-links a.active {
  color: var(--navy);
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-underline-offset: 5px;
}
.nav-cta {
  color: var(--white);
  background: var(--navy);
  padding: 12px 18px;
  border-radius: 999px;
}
.nav-cta:hover { color: var(--white); background: var(--gold); }
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: transparent;
  list-style: none;
  cursor: pointer;
}
.menu-toggle::-webkit-details-marker { display: none; }
.menu-toggle span { display: block; width: 20px; height: 2px; background: var(--text); margin: 5px auto; }

.hero {
  min-height: calc(100dvh - var(--header-height));
  display: flex;
  align-items: center;
  text-align: center;
}

section[id] {
  scroll-margin-top: calc(var(--header-height) + 16px);
}
.hero-centered {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 28px;
}
.hero-copy {
  max-width: 980px;
  margin: 0 auto;
}
.hero-copy h1 {
  font-size: clamp(2rem, 5.2vw, 4.6rem);
  max-width: 780px;
  margin-inline: auto;
}
.eyebrow, .kicker, .section-label {
  margin: 0 0 16px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
h1, h2, h3 {
  margin: 0;
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--navy);
  font-family: "Playfair Display", Georgia, serif;
  text-wrap: balance;
}
h1 { font-size: clamp(2.3rem, 5.9vw, 5.15rem); max-width: 900px; }
h2 { font-size: clamp(1.8rem, 3.8vw, 3.55rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.78rem); }
p {
  color: var(--muted);
  text-wrap: pretty;
}
.hero-lede {
  font-size: 1.22rem;
  max-width: 760px;
  margin: 28px auto 0;
}
.button-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.button-row.center { justify-content: center; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button.primary { color: var(--white); background: var(--navy); box-shadow: 0 16px 40px rgba(15, 23, 42, 0.2); }
.button.primary:hover { color: var(--white); background: var(--gold); }
.button.secondary { border-color: var(--line); background: rgba(255,255,255,0.65); }

.hero-visual {
  position: relative;
  min-height: 0;
  overflow: hidden;
  width: min(100%, 1060px);
  margin: 0 auto;
  transform: translateY(var(--hero-shift, 0px));
  transition: transform 0.35s ease;
  border-radius: 34px;
  background: transparent;
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.08);
  border: 1px solid rgba(15, 23, 42, 0.04);
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  background:
    radial-gradient(130% 100% at 50% -10%, rgba(255, 255, 255, 0.2), transparent 54%),
    radial-gradient(110% 72% at 0% 50%, rgba(247, 244, 239, 0.5), transparent 65%),
    radial-gradient(110% 72% at 100% 50%, rgba(247, 244, 239, 0.5), transparent 65%),
    linear-gradient(180deg, rgba(15, 23, 42, 0.02) 0%, rgba(15, 23, 42, 0.12) 72%, rgba(247, 244, 239, 0.34) 100%);
}

.hero-visual::after {
  content: "";
  position: absolute;
  top: 0;
  left: -55%;
  width: 48%;
  height: 100%;
  pointer-events: none;
  z-index: 3;
  opacity: 0.14;
  background: linear-gradient(105deg, transparent 0%, rgba(255, 255, 255, 0.5) 42%, transparent 100%);
  transform: translate3d(0, 0, 0);
  will-change: transform;
  animation: heroOverlaySweep 14s ease-in-out 1.1s infinite;
}

.hero-reference-image {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: inherit;
  transform: scale(1.085) translateY(0.2%);
  transform-origin: center center;
  will-change: transform;
  animation: heroCinematicZoom 1.55s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
}

@keyframes heroCinematicZoom {
  from {
    transform: scale(1.085) translateY(0.2%);
  }
  to {
    transform: scale(1) translateY(0);
  }
}

@keyframes heroOverlaySweep {
  0% {
    transform: translate3d(0, 0, 0);
    opacity: 0;
  }
  10% {
    opacity: 0.14;
  }
  45% {
    transform: translate3d(355%, 0, 0);
    opacity: 0.12;
  }
  100% {
    transform: translate3d(355%, 0, 0);
    opacity: 0;
  }
}

.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.trust-strip {
  background: linear-gradient(135deg, rgba(247, 244, 239, 0.5), rgba(230, 201, 143, 0.08));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
}

.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.trust-value {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.trust-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.trust-detail {
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 4px;
  line-height: 1.4;
}

.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.value-card, .discipline-card, .service-card, .contact-panel {
  background: rgba(255, 250, 243, 0.78);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 16px 48px rgba(15, 23, 42, 0.07);
}
.dynamic-card {
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.dynamic-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  pointer-events: none;
  background: radial-gradient(420px circle at var(--glow-x, 50%) var(--glow-y, 50%), rgba(230, 201, 143, 0.2), transparent 48%);
  transition: opacity 0.25s ease;
}

.dynamic-card:hover {
  box-shadow: 0 24px 56px rgba(15, 23, 42, 0.12);
}

.dynamic-card:hover::after {
  opacity: 1;
}
.value-card { padding: 34px; }
.number, .service-card span { color: var(--gold); font-weight: 900; letter-spacing: .16em; }
.value-card h2 { margin: 12px 0 10px; font-size: 1.6rem; letter-spacing: -0.04em; }
.value-card p { margin: 0; }

.split { display: grid; grid-template-columns: 280px 1fr; gap: 64px; align-items: start; }
.section-content p { font-size: 1.05rem; margin: 26px 0 0; }
.discipline-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.discipline-card { padding: 36px; }
.discipline-card p { margin: 18px 0; }
ul { padding-left: 20px; color: var(--muted); }
li { margin: 8px 0; }
.discipline-card a { display: inline-block; margin-top: 10px; font-weight: 800; color: var(--navy); }

.section-heading { max-width: 790px; margin-bottom: 36px; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service-card { padding: 30px; min-height: 270px; }
.service-card h3 { margin-top: 18px; font-size: 1.55rem; }

.results-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.result-card { padding: 36px; background: rgba(255, 250, 243, 0.78); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 16px 48px rgba(15, 23, 42, 0.07); }
.result-label { font-weight: 800; color: var(--navy); font-size: 1.25rem; margin: 0 0 12px; line-height: 1.2; }
.result-card p { margin: 0; font-size: 1rem; }

.model-phases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.phase-card { padding: 36px; background: rgba(255, 250, 243, 0.78); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 16px 48px rgba(15, 23, 42, 0.07); position: relative; }
.phase-number { display: inline-block; font-size: 2.8rem; font-weight: 900; color: var(--gold); line-height: 1; margin-bottom: 16px; }
.phase-card h3 { font-size: 1.5rem; margin: 0 0 12px; }
.phase-card p { margin: 0; font-size: 0.98rem; }

.faq-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.faq-item { padding: 20px; background: rgba(255, 250, 243, 0.78); border: 1px solid var(--line); border-radius: 16px; cursor: pointer; transition: box-shadow 0.28s ease, background 0.28s ease; }
.faq-item:hover { background: rgba(255, 250, 243, 0.95); box-shadow: 0 16px 48px rgba(15, 23, 42, 0.07); }
.faq-item summary { font-weight: 800; color: var(--navy); font-size: 1.05rem; list-style: none; display: flex; justify-content: space-between; align-items: center; user-select: none; }
.faq-item summary::after { content: '+'; margin-left: 16px; font-weight: 800; font-size: 1.4rem; color: var(--gold); transition: transform 0.28s ease; flex-shrink: 0; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { margin: 16px 0 0; color: var(--muted); font-size: 0.98rem; }

.experience { background: rgba(15, 23, 42, 0.04); }
.note {
  margin-top: 20px;
  font-size: 0.98rem;
  color: #4f5969;
}

.contact-panel { text-align: center; padding: 64px; background: linear-gradient(135deg, var(--navy), #1e293b); }
.contact-panel h2, .contact-panel p { color: var(--white); }
.contact-panel h2 {
  font-size: clamp(1.62rem, 3.2vw, 2.8rem);
  max-width: 920px;
  margin-inline: auto;
}
.contact-panel p { max-width: 760px; margin-left: auto; margin-right: auto; color: rgba(255,255,255,.76); }
.contact-panel .button.secondary { color: var(--white); border-color: rgba(255,255,255,.25); background: rgba(255,255,255,.08); }
.contact-panel .button.primary { background: var(--gold); }

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 20px;
  z-index: 35;
  width: 48px;
  height: 48px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: linear-gradient(140deg, rgba(15, 23, 42, 0.82), rgba(23, 37, 84, 0.76));
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  -webkit-backdrop-filter: blur(12px) saturate(125%);
  backdrop-filter: blur(12px) saturate(125%);
  transform: translateY(16px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.24s ease, transform 0.24s ease, box-shadow 0.24s ease, background 0.24s ease;
}

.back-to-top::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  z-index: -1;
  background: conic-gradient(from 180deg at 50% 50%, rgba(255, 255, 255, 0.14) 0%, rgba(255, 255, 255, 0.14) var(--back-progress, 0%), rgba(184, 137, 53, 0.95) var(--back-progress, 0%), rgba(184, 137, 53, 0.95) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  padding: 1.2px;
  opacity: 0.85;
}

.back-to-top-icon {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  font-size: 0.95rem;
  line-height: 1;
  color: var(--white);
  background: linear-gradient(140deg, rgba(230, 201, 143, 0.9), rgba(184, 137, 53, 1));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5), 0 5px 14px rgba(184, 137, 53, 0.4);
  transition: transform 0.2s ease;
}

.back-to-top:hover {
  background: linear-gradient(140deg, rgba(15, 23, 42, 0.95), rgba(23, 37, 84, 0.92));
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(15, 23, 42, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.36);
}

.back-to-top:hover .back-to-top-icon {
  transform: translateY(-1px);
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.sticky-mobile-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 25;
  background: linear-gradient(180deg, rgba(247, 244, 239, 0), rgba(247, 244, 239, 0.95));
  padding: 16px 20px 20px;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--line);
}

.sticky-mobile-cta .button {
  width: 100%;
  margin: 0;
}

.footer { padding: 48px 0 28px; background: var(--navy); color: var(--white); }
.footer p, .copyright { color: rgba(255,255,255,.66); }
.footer-grid { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; }
.footer .brand-text, .footer .brand-text span { color: var(--white); }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; font-weight: 700; }
.copyright { margin-top: 30px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.12); font-size: .9rem; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .75s ease, transform .75s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 980px) {
  .split, .discipline-grid, .service-grid, .results-grid, .model-phases { grid-template-columns: 1fr; }
  .hero { min-height: calc(100dvh - var(--header-height-mobile)); padding: 84px 0 56px; }
  .hero-visual {
    width: 100%;
    border-radius: 24px;
    overflow: hidden;
  }
  .value-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .sticky-mobile-cta { display: block; }
  section[id] {
    scroll-margin-top: calc(var(--header-height-mobile) + 20px);
  }
  .nav-links-desktop {
    display: none;
  }
  .nav-disclosure {
    display: block;
    position: relative;
  }
  .nav-disclosure > .menu-toggle {
    display: block;
  }
  .nav-disclosure > .nav-links {
    position: fixed;
    top: var(--header-height-mobile);
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: var(--bg-soft);
    box-shadow: var(--shadow);
    max-height: min(70vh, 460px);
    overflow-y: auto;
  }
  .nav-disclosure[open] > .nav-links { display: flex; }
  .nav-disclosure > .nav-links a { padding: 13px 14px; }
  .nav-cta { text-align: center; margin-top: 8px; }
}

@media (max-width: 640px) {
  .container { width: min(100% - 28px, var(--container)); }
  .section { padding: 64px 0; }
  .section-sm { padding: 32px 0; }
  body { padding-bottom: 100px; }
  .site-header { position: sticky; }
  .nav { min-height: 68px; }
  .brand { gap: 8px; }
  .brand-mark { width: 36px; height: 36px; border-radius: 12px; }
  .brand-text { font-size: 1.08rem; }
  .hero { min-height: calc(100dvh - var(--header-height-mobile)); padding: 64px 0 36px; }
  h1 { font-size: clamp(2.02rem, 9.7vw, 3.25rem); }
  h2 { font-size: clamp(1.62rem, 7.4vw, 2.5rem); }
  .hero-copy h1 { font-size: clamp(1.7rem, 8vw, 2.7rem); }
  .contact-panel h2 { font-size: clamp(1.4rem, 6vw, 2rem); }
  .hero-lede { font-size: 1.05rem; }
  .button { width: 100%; }
  .button-row {
    gap: 10px;
    margin-top: 24px;
  }
  .hero-visual {
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 14px 36px rgba(15, 23, 42, 0.10);
  }
  .hero-reference-image {
    transform: scale(1.035);
    animation-duration: 1.05s;
  }
  .hero-visual::after {
    animation: none;
    opacity: 0.08;
  }
  .trust-grid { grid-template-columns: 1fr; gap: 16px; }
  .trust-value { font-size: 1.8rem; }
  .trust-label { font-size: 0.88rem; }
  .result-card, .phase-card, .faq-item { padding: 24px; }
  .phase-number { font-size: 2.2rem; }
  .faq-item summary { font-size: 0.95rem; }
  .value-card, .discipline-card, .service-card, .contact-panel { padding: 24px; }
  .service-card { min-height: 0; }
  .contact-panel { text-align: left; }
  .contact-panel .button-row.center { justify-content: stretch; }
  .footer-grid { flex-direction: column; }
  .back-to-top {
    right: 12px;
    bottom: 14px;
    width: 44px;
    height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { transition: none; transform: none; }
  .button { transition: none; }
  .hero-visual { transform: none; }
  .hero-visual::after { animation: none; opacity: 0; }
  .scroll-progress-bar { transition: none; }
  .dynamic-card { transition: none; }
  .dynamic-card::after { transition: none; }
  .hero-reference-image { animation: none; transform: none; }
  .back-to-top { transition: none; }
  .sticky-mobile-cta { transition: none; }
}